Unit 4 Lesson 1 Bohr's Models and Lewis Dot Structures

Unit 4 Lesson 1

Electron Chemistry: Bohr's Models and Lewis Dot Structures

​Electron Chemistry

​In our nuclear chemistry unit we focused on the nucleus of the atom.

Remember the nucleus is made up of the subatomic particles; the protons and neutrons.

​In this unit our focus is placed on the final subatomic particle; the electron.

​Electron Chemistry

​One of the most interesting parts of this unit is how much mystery still surrounds electrons and their behavior.

Many scientific theories exist, but this is still a highly studied concept with new breakthroughs occurring each year.

​Electron Chemistry

In this unit we are going to be looking at some of the basic structural arrangement we understand about electrons and it's effects atomic behavior.

​We will also look at many ways this is modeled or written.

Multiple Choice

REVIEW:

How many protons would an Aluminum atom have?

• 13

• 14

• 27

• 10

Multiple Choice

REVIEW:

How many electrons would an Aluminum atom have? NO CHARGE

• 13

• 14

• 27

• 10

Multiple Choice

REVIEW:

How many electrons would an Aluminum atom have if it had a charge of +3?

• 13

• 14

• 27

• 10

​Bohr's Model

​Bohr's model gives us great insight to the behavior of atoms.

​It helps to explain phenomenon exhibited by atoms including atomic spectral lines.

​In the end though a Bohr's model has been adapted to a more modern theory named the quantum mechanical model of an atom.

​We will look at this model further next class period.

Multiple Choice

How many valence electrons would a Phosphorus atom have?

• 5

• 15

• 31

• 16

Multiple Choice

What would a phosphorus atom most likely do to gain "stability"?

• gain 3 more electrons

• lose 5 electrons

• lose all 15 electrons

• gain 15 more electrons

Multiple Choice

What would the predicted ionic charge of a phosphorus atom be?

• -3

• +3

• -5

• +5